This means you've done it right - if you ended up with something like 12 = 18, you'd know you made a mistake.

The problem is NOT asking you to find numbers for x and y. The only thing you have to do when it says "solve for y" is to get y by itself and everything else on the other side. Your final answer is:

.

That's it!

Note that this does describe a relationship between x and y, and (0,3) does satisfy this relationship. However, note that there are an infinite number of combinations of x and y that work. If you put in, say, 6 for x, you get:

so you get the point (6, -2).

If you were to graph ALL the points (there are an infinite number of them) that satisfy your equation, you'd get a straight line.